Our everyday life and production used a variety of tools and products to the large to the machine base, the body shell, an embryo as small screws, buttons and various household appliances in the shell, all have a close relationship with the mold. The shape of the mold determines the shape of these products, the quality and precision mold processing will determine the quality of these products. Material for various products, appearance, specifications and use of different mold into the casting mold, forging mold, die casting, stamping die and other non-plastic mold and plastic mold.
In recent years, with the rapid development of plastics and general industrial and engineering plastics in the intensity and precision, continuous improvement, plastic products, also expanding range of applications, such as: household electrical appliances, instruments, construction equipment, automotive, Japan with hardware and other fields, the proportion of plastic products is rapidly increasing. A well-designed plastic parts can often replace the more traditional metal parts. Plastic household products, industrial products and the trend is increasing.
2, the general definition of the mold: in industrial production, mounted by a variety of presses and press the special tools, through pressure or non-metallic materials, the metal shape of the required parts or products, this special tool referred to as mold.
3, the injection molding process Description: Mold is a tool for the production of plastic products. It consists of several groups of components parts, the combination of the successful mold cavity. Injection, the injection mold clamping in injection molding machine, molten plastic is injected into the mold cavity forming and cooling in the cavity shape, and then separated from the upper and lower mold through the top of the system will be products from the top of the left mold cavity, the mold is closed again, the last the next injection, the injection molding process is conducted in cycles.
4, the general categories of mold: Mold can be divided into plastic and non plastic mold:
(1) Non-plastic molds are: die casting, forging die, die stamping, die casting molds.
A. Casting mold – faucets, cast iron platform
B. Forging Die – Auto Body
C. Stamping die – computer panel
D. Die casting mold – super alloys, cylinder
(2) Plastic mold production technology and production based on the different products are divided into:
A. Injection Molding – TV cabinet, keyboard buttons (the most common)
B. Blow mold – drink bottles
C. Compression Molding – bakelite switch, science bowl dish
D. Transfer Molding – IC products
E. Extrusion die – glue tubes, plastic bags
F. Hot Forming Die – transparent shell molding packaging
G. Rotary molding – soft toy doll
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